Ranked No. 15 among Nationals prospects by MLB.com entering the 2013 season. ... Signed by the Washington Nationals as a Minor League free agent on July 21, 2011. ... Made his Major League debut on Sept. 4, 2012 against the Chicago Cubs. ... Missed all but one game in 2010 following a second Tommy John surgery. ... Missed the 2007 season while recovering from Tommy John surgery. ... Selected by the New York Yankees in the third round of the 2004 First-Year Player Draft out of Gulliver Preparatory School in Miami, Fla. ... Was a catcher until converting to pitcher as a high school senior. ... Helped Gulliver win the 2004 3A state championship. ... Committed to South Carolina before signing with the Yankees.